gnu.commonlisp.lang

Class Lisp2

java.lang.Object

gnu.expr.Language

gnu.kawa.lispexpr.LispLanguage

gnu.commonlisp.lang.Lisp2

Direct Known Subclasses:

CommonLisp, ELisp

public abstract class Lisp2
extends LispLanguage

Abstract class for Lisp-like languages with separate namespaces.

Field Summary

Fields

Modifier and Type	Field and Description
static LList	FALSE
static Expression	nilExpr
static Symbol	TRUE

Fields inherited from class gnu.kawa.lispexpr.LispLanguage

bracket_apply_sym, bracket_list_sym, defaultReadTable, getNamedPartLocation, lookup_sym, quasiquote_sym, quote_sym, unquote_sym, unquotesplicing_sym

Fields inherited from class gnu.expr.Language

current, env_counter, environ, FUNCTION_NAMESPACE, global, NAMESPACE_PREFIX_NAMESPACE, PARSE_CURRENT_NAMES, PARSE_EXPLICIT, PARSE_FOR_APPLET, PARSE_FOR_EVAL, PARSE_FOR_SERVLET, PARSE_IMMEDIATE, PARSE_ONE_LINE, PARSE_PROLOG, requirePedantic, userEnv, VALUE_NAMESPACE

Constructor Summary

Constructors

Constructor and Description
Lisp2()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.Object	asSymbol(java.lang.String name) Get a symbol for a given (interned) Java string.
java.lang.Object	booleanObject(boolean b)
ReadTable	createReadTable() Create a fresh ReadTable appropriate for this language.
protected void	defun(java.lang.String name, java.lang.Object value)
protected void	defun(Symbol sym, java.lang.Object value)
void	emitPushBoolean(boolean value, CodeAttr code)
protected Symbol	fromLangSymbol(java.lang.Object obj)
java.lang.Object	getEnvPropertyFor(java.lang.reflect.Field fld, java.lang.Object value)
int	getNamespaceOf(Declaration decl) Return the namespace (e.g value or function) of a Declaration.
static java.lang.Object	getString(java.lang.String name) Get a string for a given Java string.
static java.lang.Object	getString(Symbol symbol) Get a string for a given symbol.
boolean	hasSeparateFunctionNamespace() True if functions are in a separate anme space from variable.
protected void	importLocation(Location loc)
boolean	isTrue(java.lang.Object value) Test if a value is considered "true" in this language.
java.lang.Object	noValue() The value to return for a "void" result.
boolean	selfEvaluatingSymbol(java.lang.Object obj)

Methods inherited from class gnu.kawa.lispexpr.LispLanguage

checkDefaultBinding, declFromField, defSntxStFld, defSntxStFld, getCompilation, getLexer, langSymbolToSymbol, makeApply, makeBody, parse, resolve

Methods inherited from class gnu.expr.Language

asType, coerceFromObject, coerceToObject, defAliasStFld, define, defineFunction, defineFunction, defProcStFld, defProcStFld, detect, detect, detect, emitCoerceToBoolean, eval, eval, eval, eval, eval, eval, eval, eval, eval, formatType, getDefaultLanguage, getEnvironment, getEnvPropertyFor, getFormat, getInstance, getInstance, getInstanceFromFilenameExtension, getLangEnvironment, getLangTypeFor, getLanguages, getName, getNewEnvironment, getOutputConsumer, getPrompter, getSymbol, getTypeFor, getTypeFor, getTypeFor, getTypeFor, getTypeFor, hasNamespace, loadClass, lookup, lookupBuiltin, parse, parse, parse, parse, registerLanguage, restoreCurrent, runAsApplication, setCurrentLanguage, setDefaults, setSaveCurrent, string2Type, unionType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FALSE

public static final LList FALSE

TRUE

public static final Symbol TRUE

nilExpr

public static final Expression nilExpr

Constructor Detail

Lisp2

public Lisp2()

Method Detail

isTrue

public boolean isTrue(java.lang.Object value)

Description copied from class: Language

Test if a value is considered "true" in this language.

Overrides:

isTrue in class Language

booleanObject

public java.lang.Object booleanObject(boolean b)

Overrides:

booleanObject in class Language

emitPushBoolean

public void emitPushBoolean(boolean value,
                   CodeAttr code)

Overrides:

emitPushBoolean in class Language

noValue

public java.lang.Object noValue()

Description copied from class: Language

The value to return for a "void" result.

Overrides:

noValue in class Language

hasSeparateFunctionNamespace

public boolean hasSeparateFunctionNamespace()

Description copied from class: Language

True if functions are in a separate anme space from variable. Is true for e.g. Common Lisp, Emacs Lisp; false for Scheme.

Overrides:

hasSeparateFunctionNamespace in class Language

selfEvaluatingSymbol

public boolean selfEvaluatingSymbol(java.lang.Object obj)

Overrides:

selfEvaluatingSymbol in class LispLanguage

getEnvPropertyFor

public java.lang.Object getEnvPropertyFor(java.lang.reflect.Field fld,
                                 java.lang.Object value)

Overrides:

getEnvPropertyFor in class Language

getNamespaceOf

public int getNamespaceOf(Declaration decl)

Description copied from class: Language

Return the namespace (e.g value or function) of a Declaration. Return a bitmask of all the namespaces "covered" by the Declaration. Note this isn't a namespace in the XML sense; if a Declaration has a specific namespace URI, then that is part of its symbol. This namespace bitmap is a separate dimension, for the use of languages that have separate namespaces for different kinds of declarations, such as variables and functions.

Overrides:

getNamespaceOf in class Language

asSymbol

public static java.lang.Object asSymbol(java.lang.String name)

Get a symbol for a given (interned) Java string.

fromLangSymbol

protected Symbol fromLangSymbol(java.lang.Object obj)

Overrides:

fromLangSymbol in class LispLanguage

getString

public static java.lang.Object getString(java.lang.String name)

Get a string for a given Java string.

getString

public static java.lang.Object getString(Symbol symbol)

Get a string for a given symbol.

defun

protected void defun(java.lang.String name,
         java.lang.Object value)

defun

protected void defun(Symbol sym,
         java.lang.Object value)

importLocation

protected void importLocation(Location loc)

createReadTable

public ReadTable createReadTable()

Description copied from class: LispLanguage

Create a fresh ReadTable appropriate for this language.

Specified by:

createReadTable in class LispLanguage